English David A. Johnston Cited by user Citation bot on 13 Sep 2022 David Alexander Johnston (December 18, 1949 – May 18, 1980) was an American United States Geological Survey (USGS) volcanologist who was killed by the 1980 eruption of…
English David A. Johnston Cited by user Citation bot on 13 Sep 2022 David Alexander Johnston (December 18, 1949 – May 18, 1980) was an American United States Geological Survey (USGS) volcanologist who was killed by the 1980 eruption of…
English David A. Johnston Cited by user Citation bot on 13 Sep 2022 David Alexander Johnston (December 18, 1949 – May 18, 1980) was an American United States Geological Survey (USGS) volcanologist who was killed by the 1980 eruption of…